🔧 fix: Error Handling Improvements (#1518)

* style(Icon): remove error bubble from message icon

* fix(custom): `initializeClient` now throws error if apiKey or baseURL are admin provided but no env var was found

* refactor(tPresetSchema): match `conversationId` type to `tConversationSchema` but optional, use `extendedModelEndpointSchema` for `endpoint`

* fix(useSSE): minor improvements
- use `completed` set to avoid submitting unecessary abort request
- set preset with `newConversation` calls using initial conversation settings to prevent default Preset override as well as default settings
- return if there is a parsing error within `onerror` as expected errors from server are properly formatted

api/server/services/Endpoints/custom/initializeClient.js

@@ -4,6 +4,8 @@ const { isUserProvided, extractEnvVariable } = require('~/server/utils');
 const getCustomConfig = require('~/cache/getCustomConfig');
 const { OpenAIClient } = require('~/app');
 
+const envVarRegex = /^\${(.+)}$/;
+
 const { PROXY } = process.env;
 
 const initializeClient = async ({ req, res, endpointOption }) => {
@@ -20,6 +22,14 @@ const initializeClient = async ({ req, res, endpointOption }) => {
   const CUSTOM_API_KEY = extractEnvVariable(endpointConfig.apiKey);
   const CUSTOM_BASE_URL = extractEnvVariable(endpointConfig.baseURL);
 
+  if (CUSTOM_API_KEY.match(envVarRegex)) {
+    throw new Error(`Missing API Key for ${endpoint}.`);
+  }
+
+  if (CUSTOM_BASE_URL.match(envVarRegex)) {
+    throw new Error(`Missing Base URL for ${endpoint}.`);
+  }
+
   const customOptions = {
     addParams: endpointConfig.addParams,
     dropParams: endpointConfig.dropParams,